Car roof



Feb. 17. 1925. 1,526,826 vc. D. BoNsALL.

cAR'RoF originai Filed oct. 2 I1920 lio reame Feb. 17, 1925.

omiten s'rArE-s lPa'rxarrr OFFICE. y

` CHARLES DAVID BONsALL, OE PITTSBURGH, rENNsYLVANIA-AssIeNoR- To r. H. v MUEEHY COMPANY, or NEW KENSINGTON, PENNSYLVANIA.

GAR ROOF.

Original application` led October 2, 1920, Seriall No. 414,302. Divided and this application led September 17, 1924. Serial No. 738,144.

To all whom z't may concern.:

Be it known that I, CHARLES DAVID BON- SAL-I., a Citizen of the United States, anda residentf the City of Pittsburgh, County of a Allegheny, and State of Pennsylvania, have invented a new and useful Improvement in Car Roofs, of which the followmg is a speciiication.

The subject-matter lhereof is'divided out.

of my pending a plication Serial Number 414,302, filed Oeto er 2, 1920, for patent for car roofs.

The present inventiolrelates to car roofs of the all steel riveted type wherein heavy gage self-supporting roof sheets extend from side to sideV of the car, the roof sheets being rigidly secured together along their side margins and their eaves portions being-rigidly securedto the side plates of the Car. The

principal object ofthe speciiic construction -claimed herein is to simplify the design of the individual roof sheets that are assembled into a construction embodying the invention set forth in my said pending application;

25.1and the present invention consists mainly in a car roof wherein the roof sheets are of Channel section and arranged in two series with their side flanges rigidly secured together, the sheets of one series hav-ingther channels openingdownwardly and alternating with the sheets of the other series whose channels4 Open upwardly.

In the accompanying'drawing,

Fig. 1 is a' planview of a car roof embody-lng the present invention;

Fig. 2 is a vertical longitudinal sectional view thereofon the line 2-2 of Fig. 1;

Fig. 3 is a partial vertical lon itudinal sectional view on the line 3-8 o Fig. 1; and

- Fig. l'is a vertical Cross-section on the lline 4-4 of Fig. 1.

Like reference numerals in the accompanying drawing refer to like parts wherever they occur 1n said drawing and also in the drawing forming part of my said copending application.

The present roof is applied to a steel box car havin a roof substructure comprising metal ang e-barside plates 20, which are arranged with one flange up and facing outwardly. A steel car end 21 whose upper portion is flanged inwardly, as shown at 22, and `is inclined downwardly on opposite sides of the ridge to conform to the pitch of the roof,

has its upper portion connected to the end of the angle-bar side vplates in .any desired manner. An angle-bar end plate 23 slopes downwardly on opposite sides of the ridge and has its vertical flange riveted or otherwise rigidly secured to tie steel car end 21.

Transversely arranged load sustaining roof sheets 25" span the car fromv side plate to 'side 4plate with their eaves ort-ions sup-` ported on the upperl flanges t ereof. The roof sheets slope' downwardly on opposite sides of the ridges to form a pitch (or arcuate) roof and are Inaden the form of channels. The roof sheets are arranged in two series, 'the sheetsl ofl one series alternating with those of the other series. The sheets of one series are arranged with the channel 32 opening upwardly and the sheets of the Otherseries are arranged with the channel 31 inverted or depending side anges 29 of the inverted channels overlap the upstandin side flanges 30 of the upwardly opening c annels, and said flanges 29, 30, are rigidly' secured together by rivets 33.011 other suitable means. The body portions of theroof sheetsof one series are'in a lower plane, while the body portions of the sheets 'of the other series arel in an upper plane Substantially'parallel with said lower plane. By this arrangement, the neutralplane axis of the roof 1s approxilmately midway.` between said u per and lower planes. The lower plane s eets rest flatwise onthe upper flange of the side plate and 'are riveted or otherwise secured thereto, as indicated at 37; and the end portions of the upper plane sheets 4are Curved downwardly to the plane of the vlower sheets atthe eaves. The endsof the roof sheets Overlap the side plate and end in a downturned flange 35 immediately beyond saidside plate.

Runnin r boards 39 reston andare secured to t e horizontal top flan es of anglebar running board saddlesl 40 w ose vert1cal flan es are arranged flat-wise against the depen ing side flanges 29 of the up er plane sheets and are secured in position y means of the rivets, 33 that secure together the lapped flanges 29 and 30 of adjacent sheets.

The body portion of theend sheet 42 lies inthe plane of the bottoms of the upwardly opening Channels of the main sheets 25" and rests on and is securedto the outwardly proofpening downwardly. Thef jecting flange of the end angle 23 by rivets 45. The outer margin of the end sheet is turned down over the outer edge of the angle 23 in the form of a drip flange 46. The running boards 39 project beyond the end of the car and have an angle iron 47 bolted or otherwise rigidly secured to the undersides thereof. TheI overhanging ends of the ruiming boards are braced and supported from the steel car end by means of inclined braces 4S which have their upper and lower ends riveted or otherwise secured to the vertical flange of the angle 47 and the car end 21, respectively.

The sheets 25b are formed of rectangular sheet metal blanks. Tlie'surplus metal resulting from decreasing the height of the upper plane sheets in the region of the eaves is used to increase the width of said sheets at the eaves and form an overlap 36 above the lower plane sheets. The eaves end portions of the upstanding side flanges 30 of the lower plane sheets are flattened out over the side plates in the plane of their body portions, as at 34, to bear flatwise on the tops of the side plates. The accompanying drawing illustrates the upper plane sheets a's increasing in width from the ridge to each eaves and the lower plane sheets decreasing in width from the ridge to the eaves;v but while this particular form has special advantages, it is obvious that the width of the sheets may be uniform from end to end.

What I claim is:

extending from eaves to eaves and arranged alternately 1n upper and lower planes over the body of the car, the upper plane sheets being inclined downward at the eaves into the plane of the lower sheets, and upturned and downturned side flanges respectively on the lower and upper plane sheets rigidly secured to each other.

2. A car roof` comprising a series of roofing sheets extending from eaves to eaves and alternately arranged in upper and lower planes substantially parallel to each other over the body of the car, the upper plane sheets being curved downward at the eaves into substantially the plane ofthe lower sheets, upwardly and downwardly extending side ianges respectively on' the lower and upper plane sheets lying. adjacent to each other and riveted, side plates, and means for rigidly securing said sheets at the eaves to said side plates.

3. A car roof comprising a series of roofing sheets extendin from eaves to eaves and -arranged alternate y in upper and lower planes substantially parallel over the body port-ion of the car, said'lower and up er plane sheets `having respectively upwardly and downwardly extending side flanges rigidly secured to each other, each of said sheets beino' formed of a rectangular sheet metal blan and the upper planel sheets being inclined downward adjacent to the eaves into substantially the plane of the lower sheets and the surplus metal bein disposed in increased width at the eaves orming an overlap, sidefplates, and mea'ns for rigidly sey l curing said sheetsto said side plates. 1. A car roof comprising a series of sheets l Signed at St. Louis, Mo., this 15th day of September, 1924.

CHARLES DAVID BONSALL. 

